Lean Correction - Front, F-250, F-350, 4x4 and F -450, F-550

NOTE: Front side lean can be adjusted approximately 10 mm (3/8 in.) by installing shim D7TZ-5742-A on the low side. A vehicle that is low at the front can be raised by installing shims at both sides.

Raise and support the vehicle.
Support the axle.

Fig 1: Supporting Axle
Courtesy of FORD MOTOR CO.
Remove and discard the four nuts and two U-bolts.

Fig 2: Removing And Discard Four Nuts And Two U-Bolts
Courtesy of FORD MOTOR CO.
Separate the front axle from the springs.

Fig 3: Separating Front Axle From Springs
Courtesy of FORD MOTOR CO.
Turn the shim so the recess is facing upward.

Fig 4: Turning Shim
Courtesy of FORD MOTOR CO.
Insert the shim between the spring and the spring seat.
- Position the shim so the spring tie bolt is in the shim recess, the stud on the bottom of the shim is in the spring seat recess, and the shim is aligned with the spring.
  
  Fig 5: Inserting Shim Between Spring And Spring Seat
  Courtesy of FORD MOTOR CO.
Install two new U-bolts and four new nuts.

Fig 6: Installing Two New U-Bolts And Four New Nuts
Courtesy of FORD MOTOR CO.
Remove the support from the axle.

Fig 7: Removing Support From Axle
Courtesy of FORD MOTOR CO.
Lower the vehicle.